Adding a dynamically sized view (height) to a UIScrollView with Auto Layout

Question

Here is my structure of views for this detail view (blogging application, I want to view the entire post which has dynamic height inside of a scrollview):

UI         


        

Answer 1

in auto layout

frame of scrollview is decided by constraints between scrollview and superview of scrollview. contentSize of scrollview is decided by constraints between scrollview and subview of scrollview.

you should set the size of singlePostView. ScrollView calculate contentSize from it. (you need to add size constraints explicitly)

CGFloat heightOfSinglePostView = calculate..
[scrollView addConstraints:[NSLayoutConstraint constraintsWithVisualFormat:@"H:|[singlePost(heightOfSinglePostView)]|" options:0 metrics: 0 views:viewsDictionary]];